There are several types of pipe tempering

Bisa ga GB/T9711.1 bututun karfe bututu yi bukatun, bisa ga daban-daban tempering zafin jiki, za a iya raba zuwa wadannan irin tempering:

[1] Ƙananan zafin jiki (digiri 150-250)
Microstructure da aka samu ta hanyar ƙananan zafin jiki yana da zafi martensite.Manufarsa ita ce a rage damuwa mai kashewa da gaɓar ƙarfe mai tauri a kan yanayin kiyaye ƙaƙƙarfan taurinsa da tsayin daka, don guje wa fashewa ko lalacewa da wuri lokacin amfani.An yafi amfani ga kowane irin high carbon yankan kayan aikin, aunawa kayan aikin, GB / T9711.1 bututun karfe bututu, mirgina bearings da carburizing sassa, da dai sauransu, da taurin bayan tempering ne GENERALLY HRC58-64.

[2] Matsakaicin zafin jiki (digiri 250-500)
Microstructure da aka samu ta matsakaicin zafin jiki shine trostit.Manufar ita ce samun ƙarfin yawan amfanin ƙasa, iyaka na roba da babban tauri.Saboda haka, shi ne yafi amfani ga kowane irin GB / T9711.1 bututun karfe bututu da zafi mold magani, bayan tempering taurin ne kullum HRC35-50.

[3] Babban zafin jiki (digiri 500-650)
Karamin tsarin da aka samu ta hanyar zafin jiki mai zafi shine yanayin yanayin zafi.Yawanci, maganin zafi da aka haɗa tare da quenching da tempering ana kiransa quenching da tempering.Manufarsa ita ce samun ingantattun kaddarorin inji na ƙarfi, taurin, filastik da tauri.Sabili da haka, ana amfani da shi sosai a cikin motoci, GB/T9711.1 bututun ƙarfe na bututun ƙarfe, kayan aikin injin da sauran mahimman sassa na tsarin, kamar sanda mai haɗawa, kusoshi, kaya da shaft.Taurin bayan zafin shine gabaɗaya HB200-330.

Daidaitawa

API SPEC 5L -- Matsayin Cibiyar Man Fetur ta Amurka

GB/T9711 -- Matsayin kasa na kasar Sin

Amfani

Ana amfani dashi don iskar oxygen, ruwa da bututun mai a cikin masana'antar man fetur da iskar gas

Babban samar da maki bututun ƙarfe:

B, X42, X52, X60, X65, X70 L245 L290 L320 L360 L390 L450 L485

Kayan aikin injiniya

Daidaitawa	Matsayin samfur	Karfe daraja	Ƙarfin Haɓaka (minti), Mpa	Ƙarfin Tensile (MPa)
API 5L GB/T9711.2	Farashin PSL1	A ya da L210	210	335
		B ko L245	245	415
		x42 ya da L290	290	415
		X46 ya da L320	320	435
		X52 ya da L360	360	460
		X56 ya da L390	390	490
		X60 ya da L415	415	520
		X70	483	565
	Farashin PSL2	BR ko L245R	245-450	415-760
		X42R ya da L290R	290-495	415-760
		BN ya da L245N	245-450	415-760
		X42N ya da L290N	290-495	415-760
		X46N ya da L320N	320-525	435-760
		X52N ya da L360N	360-530	460-760
		X56N ya da L390N	390-545	490-760
		X60N ya da L415N	415-565	520-760
		X65N ya da L450N	425-566	525-760
		X70 ya da L480	484-565	565-768
		X80	552-690	621-827

Tebur na abubuwan sinadaran a cikin bututun mai

Matsayin samfur	Karfe daraja	Haɗin Sinadari, %
Matsayin samfur	Karfe daraja	C	Mn	P	S	Kuma	IN	Nb	Of	CEpcm
Farashin PSL1	B ko L245	≤0.28	≤1.20	≤0.030	≤0.030	-	-	-	-	-
	x42 ya da L290	≤0.28	≤1.30	≤0.030	≤0.030	-	-	-	-	-
	X46 ya da L320	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
	X52 ya da L360	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
	X56 ya da L390	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
	X60 ya da L415	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
	X70	≤0.28	≤1.40	≤0.030	≤0.030	-	-	-	-	-
Farashin PSL2	BR ko L245R	≤0.24	≤1.20	≤0.025	≤0.015	≤0.40	c	c	≤0.04	≤0.25
	X42R ya da L290R	≤0.24	≤1.20	≤0.025	≤0.015	≤0.40	≤0.06	≤0.05	≤0.04	≤0.25
	BN ya da L245N	≤0.24	≤1.20	≤0.025	≤0.015	≤0.40	c	c	≤0.04	≤0.25
	X42N ya da L290N	≤0.24	≤1.30	≤0.025	≤0.015	≤0.40	≤0.06	≤0.05	≤0.04	≤0.25
	X46N ya da L320N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.40	≤0.07	≤0.05	≤0.04	≤0.25
	X52N ya da L360N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	≤0.25
	X56N ya da L390N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	≤0.25
	X60N ya da L415N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	-
	X65N ya da L450N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	-
	X70N	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04	-
	X80	≤0.24	≤1.40	≤0.025	≤0.015	≤0.45	≤0.10	≤0.05	≤0.04